Advances in optical cryo-cooler device development (Conference Presentation)

Jackson Kock; Junwei Meng; Azzurra Volpi; Alexander R. Albrecht; Richard I. Epstein; Mansoor Sheik-Bahae

doi:10.1117/12.2547614

9 March 2020 Advances in optical cryo-cooler device development (Conference Presentation)

Jackson Kock, Junwei Meng, Azzurra Volpi, Alexander R. Albrecht, Richard I. Epstein, Mansoor Sheik-Bahae

Proceedings Volume 11298, Photonic Heat Engines: Science and Applications II; 1129808 (2020) https://doi.org/10.1117/12.2547614
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Optical refrigeration of a Yb:YLF crystal can be used to cool an arbitrary payload, utilizing a novel MgF2 thermal link in a completely vibration free optical cryocooler. We discuss the latest advances in the design and implementation of an astigmatic Herriott cell to optimize pump laser absorption in the cooling crystal, and are studying the adverse effects of absorption saturation. We investigate novel spectrally selective coatings of the clamshell to reduce the parasitic heat load on the crystal. By overcoming these challenges, we work towards cooling a silicon reference cavity to a temperature of 124 K.

Conference Presentation

Citation Download Citation

Jackson Kock, Junwei Meng, Azzurra Volpi, Alexander R. Albrecht, Richard I. Epstein, and Mansoor Sheik-Bahae "Advances in optical cryo-cooler device development (Conference Presentation)", Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 1129808 (9 March 2020); https://doi.org/10.1117/12.2547614

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